US 12,272,842 B2
Sampling assembly, connection assembly, battery module and vehicle
Sien Chen, Ningde (CN); Shoujiang Xu, Ningde (CN); and Xiaoshan Dai, Ningde (CN)
Assigned to Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Dec. 9, 2021, as Appl. No. 17/546,075.
Application 17/546,075 is a continuation of application No. PCT/CN2020/102613, filed on Jul. 17, 2020.
Claims priority of application No. 201921582237.X (CN), filed on Sep. 23, 2019.
Prior Publication US 2022/0102814 A1, Mar. 31, 2022
Int. Cl. H01M 50/519 (2021.01); H01M 10/42 (2006.01); H01M 50/209 (2021.01); H01M 50/507 (2021.01)
CPC H01M 50/519 (2021.01) [H01M 10/425 (2013.01); H01M 50/209 (2021.01); H01M 50/507 (2021.01); H01M 2220/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A sampling assembly for a battery module, the battery module comprising a busbar, wherein the sampling assembly comprises:
a sampling circuit board with a predetermined length and a predetermined width;
a sampling leg comprising a first connection portion, an intermediate portion and a second connection portion, the first connection portion being connected to the sampling circuit board, the second connection portion configured to be connected to the busbar, the first connection portion comprising a first connection region connected to the intermediate portion, the second connection portion comprising a second connection region connected to the intermediate portion, at least a part of the intermediate portion having a cross-sectional area which is smaller than a cross-sectional area of the first connection region and smaller than a cross-sectional area of the second connection region;
wherein the first connection portion, the intermediate portion, and the second connection portion are successively distributed in a width direction of the sampling circuit board;
wherein a length direction of the sampling circuit board intersects with the width direction of the sampling circuit board;
wherein the intermediate portion is provided with a through hole, a cross-sectional area of a portion of the intermediate portion corresponding to the through hole being smaller than the cross-sectional area of the first connection region and smaller than the cross-sectional area of the second connection region;
wherein the intermediate portion comprises a bent pointed region protruding in the length direction of the sampling circuit board, a starting point and/or an end point of the through hole being offset from the bent pointed region in the width direction of the sampling circuit board;
wherein the starting point of the through hole is closer to the first connection region than the end point and has a predetermined distance from the first connection region, and the end point is closer to the second connection region than the starting point and has a predetermined distance from the second connection region;
wherein the through hole extends between the first connection portion and the second connection portion in an extension direction of the intermediate portion, such that the through hole has a bent pointed hole region aligned with the bent pointed region of the intermediate portion, and separates the intermediate portion to form a plurality of strip-like bodies extending in the extension direction of the intermediate portion;
wherein a number of the through hole is one in order to form two strip-like bodies separated at the intermediate portion.